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Reviewed-by: Muller, Martin <martin.muller@t-systems.com> Reviewed-by: Sabelnikov, Dmitriy <dmitriy.sabelnikov@t-systems.com> Co-authored-by: zhangyue <zhangyue164@huawei.com> Co-committed-by: zhangyue <zhangyue164@huawei.com>
131 lines
9.0 KiB
HTML
131 lines
9.0 KiB
HTML
<a name="evs_04_2077"></a><a name="evs_04_2077"></a>
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<h1 class="topictitle1">Querying One Piece of Metadata for an EVS Disk</h1>
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<div id="body1497444577414"><div class="section" id="evs_04_2077__section19390540"><h4 class="sectiontitle">Function</h4><p id="evs_04_2077__p50301879">This API is used to query one piece of the EVS disk metadata.</p>
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</div>
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<div class="section" id="evs_04_2077__section40297137"><h4 class="sectiontitle">URI</h4><ul id="evs_04_2077__ul47920438"><li id="evs_04_2077__li28630766">URI format<p id="evs_04_2077__p4081867221314"><a name="evs_04_2077__li28630766"></a><a name="li28630766"></a>GET /v2/{project_id}/volumes/{volume_id}/metadata/{key}</p>
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</li><li id="evs_04_2077__li971734">Parameter description
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="evs_04_2077__table8745607" frame="border" border="1" rules="all"><thead align="left"><tr id="evs_04_2077__row15985080"><th align="left" class="cellrowborder" valign="top" width="24.12%" id="mcps1.3.2.2.2.1.1.4.1.1"><p id="evs_04_2077__p19723089">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="24.87%" id="mcps1.3.2.2.2.1.1.4.1.2"><p id="evs_04_2077__p54066375">Mandatory</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="51.01%" id="mcps1.3.2.2.2.1.1.4.1.3"><p id="evs_04_2077__p17300225">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="evs_04_2077__row59140967"><td class="cellrowborder" valign="top" width="24.12%" headers="mcps1.3.2.2.2.1.1.4.1.1 "><p id="evs_04_2077__p25689059">project_id</p>
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</td>
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<td class="cellrowborder" valign="top" width="24.87%" headers="mcps1.3.2.2.2.1.1.4.1.2 "><p id="evs_04_2077__p439002">Yes</p>
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</td>
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<td class="cellrowborder" valign="top" width="51.01%" headers="mcps1.3.2.2.2.1.1.4.1.3 "><p id="evs_04_2077__p35559222">Specifies the project ID.</p>
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</td>
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</tr>
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<tr id="evs_04_2077__row51597550"><td class="cellrowborder" valign="top" width="24.12%" headers="mcps1.3.2.2.2.1.1.4.1.1 "><p id="evs_04_2077__p18651996">volume_id</p>
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</td>
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<td class="cellrowborder" valign="top" width="24.87%" headers="mcps1.3.2.2.2.1.1.4.1.2 "><p id="evs_04_2077__p34416674">Yes</p>
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</td>
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<td class="cellrowborder" valign="top" width="51.01%" headers="mcps1.3.2.2.2.1.1.4.1.3 "><p id="evs_04_2077__p36287209">Specifies the disk ID.</p>
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</td>
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</tr>
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<tr id="evs_04_2077__row3599748213115"><td class="cellrowborder" valign="top" width="24.12%" headers="mcps1.3.2.2.2.1.1.4.1.1 "><p id="evs_04_2077__p23144139213115">key</p>
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</td>
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<td class="cellrowborder" valign="top" width="24.87%" headers="mcps1.3.2.2.2.1.1.4.1.2 "><p id="evs_04_2077__p62735991213115">Yes</p>
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</td>
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<td class="cellrowborder" valign="top" width="51.01%" headers="mcps1.3.2.2.2.1.1.4.1.3 "><p id="evs_04_2077__p48450544213115">Specifies the key of the piece of metadata to be queried.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</li></ul>
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</div>
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<div class="section" id="evs_04_2077__section27129916"><h4 class="sectiontitle">Request</h4><ul id="evs_04_2077__ul11152033120"><li id="evs_04_2077__li1815190173113">Example request<pre class="screen" id="evs_04_2077__screen16164152682">GET https://{endpoint}/v2/{project_id}/volumes/b104b8db-170d-441b-897a-3c8ba9c5a214/metadata/value1</pre>
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</li></ul>
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</div>
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<div class="section" id="evs_04_2077__section42842654"><h4 class="sectiontitle">Response</h4><ul id="evs_04_2077__ul45240216"><li id="evs_04_2077__li8787321201856">Parameter description
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="evs_04_2077__table11977025201856" frame="border" border="1" rules="all"><thead align="left"><tr id="evs_04_2077__row8102228201856"><th align="left" class="cellrowborder" valign="top" width="21.43%" id="mcps1.3.4.2.1.1.1.4.1.1"><p id="evs_04_2077__p52300707201856">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="26.86%" id="mcps1.3.4.2.1.1.1.4.1.2"><p id="evs_04_2077__p3642697315541">Type</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="51.71%" id="mcps1.3.4.2.1.1.1.4.1.3"><p id="evs_04_2077__p17319263201856">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="evs_04_2077__row60683035201856"><td class="cellrowborder" valign="top" width="21.43%" headers="mcps1.3.4.2.1.1.1.4.1.1 "><p id="evs_04_2077__p16378828201856">meta</p>
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</td>
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<td class="cellrowborder" valign="top" width="26.86%" headers="mcps1.3.4.2.1.1.1.4.1.2 "><p id="evs_04_2077__p6490369115541">Object</p>
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</td>
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<td class="cellrowborder" valign="top" width="51.71%" headers="mcps1.3.4.2.1.1.1.4.1.3 "><p id="evs_04_2077__p20205612201856">Specifies a piece of the disk metadata, which is made up of a key-value pair.</p>
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</td>
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</tr>
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<tr id="evs_04_2077__row1671114118139"><td class="cellrowborder" valign="top" width="21.43%" headers="mcps1.3.4.2.1.1.1.4.1.1 "><p id="evs_04_2077__p129522216412">error</p>
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</td>
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<td class="cellrowborder" valign="top" width="26.86%" headers="mcps1.3.4.2.1.1.1.4.1.2 "><p id="evs_04_2077__evs_04_2010_p1595262111415">Object</p>
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</td>
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<td class="cellrowborder" valign="top" width="51.71%" headers="mcps1.3.4.2.1.1.1.4.1.3 "><p id="evs_04_2077__p109527215417">Specifies the error message returned when an error occurs. For details, see <a href="#evs_04_2077__li0419202382514">Parameters in the error field</a>.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</li><li id="evs_04_2077__li0419202382514"><a name="evs_04_2077__li0419202382514"></a><a name="li0419202382514"></a>Parameters in the <strong id="evs_04_2077__evs_04_2013_b1288034833610">error</strong> field
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="evs_04_2077__evs_04_2013_table15441099103019" frame="border" border="1" rules="all"><thead align="left"><tr id="evs_04_2077__evs_04_2013_row54094047103019"><th align="left" class="cellrowborder" valign="top" width="21.17788221177882%" id="mcps1.3.4.2.2.2.1.4.1.1"><p id="evs_04_2077__evs_04_2013_p19541716103019">Parameter</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="21.17788221177882%" id="mcps1.3.4.2.2.2.1.4.1.2"><p id="evs_04_2077__evs_04_2013_p39375186103019">Type</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="57.64423557644236%" id="mcps1.3.4.2.2.2.1.4.1.3"><p id="evs_04_2077__evs_04_2013_p38578950103019">Description</p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="evs_04_2077__evs_04_2013_row59401790103019"><td class="cellrowborder" valign="top" width="21.17788221177882%" headers="mcps1.3.4.2.2.2.1.4.1.1 "><p id="evs_04_2077__evs_04_2013_p46815658103019">message</p>
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</td>
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<td class="cellrowborder" valign="top" width="21.17788221177882%" headers="mcps1.3.4.2.2.2.1.4.1.2 "><p id="evs_04_2077__evs_04_2013_p33971979103019">String</p>
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</td>
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<td class="cellrowborder" valign="top" width="57.64423557644236%" headers="mcps1.3.4.2.2.2.1.4.1.3 "><p id="evs_04_2077__evs_04_2013_p21623243103019">The error message returned if an error occurs.</p>
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</td>
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</tr>
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<tr id="evs_04_2077__evs_04_2013_row60391466103019"><td class="cellrowborder" valign="top" width="21.17788221177882%" headers="mcps1.3.4.2.2.2.1.4.1.1 "><p id="evs_04_2077__evs_04_2013_p59870541103019">code</p>
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</td>
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<td class="cellrowborder" valign="top" width="21.17788221177882%" headers="mcps1.3.4.2.2.2.1.4.1.2 "><p id="evs_04_2077__evs_04_2013_p17675690103019">String</p>
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</td>
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<td class="cellrowborder" valign="top" width="57.64423557644236%" headers="mcps1.3.4.2.2.2.1.4.1.3 "><p id="evs_04_2077__evs_04_2013_p6087468103019">The error code returned if an error occurs.</p>
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<p id="evs_04_2077__evs_04_2013_p54787218103019">For details about the error code, see <a href="evs_04_0038.html">Error Codes</a>.</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</li><li id="evs_04_2077__li4508766">Example response<pre class="screen" id="evs_04_2077__screen4382175515129">{
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"meta": {
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"key1": "value1"
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}
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}</pre>
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<p id="evs_04_2077__p52821068113531">or</p>
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<pre class="screen" id="evs_04_2077__screen3734876915117">{
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"error": {
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"message": "XXXX",
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"code": "XXX"
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}
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}</pre>
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<p id="evs_04_2077__p5655715720175">In the preceding example, <strong id="evs_04_2077__b842352706143959">error</strong> indicates a general error, for example, <strong id="evs_04_2077__b842352706144438">badrequest</strong> or <strong id="evs_04_2077__b842352706144454">itemNotFound</strong>. An example is provided as follows:</p>
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<pre class="screen" id="evs_04_2077__screen24363366151131">{
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"itemNotFound": {
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"message": "XXXX",
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"code": "XXX"
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}
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}</pre>
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</li></ul>
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</div>
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<div class="section" id="evs_04_2077__section50039568"><h4 class="sectiontitle">Status Codes</h4><ul id="evs_04_2077__ul5136981"><li id="evs_04_2077__li46232835">Normal<p id="evs_04_2077__p13442339"><a name="evs_04_2077__li46232835"></a><a name="li46232835"></a>200</p>
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</li></ul>
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</div>
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<div class="section" id="evs_04_2077__section431317151242"><h4 class="sectiontitle">Error Codes</h4><p id="evs_04_2077__evs_04_2013_p783819215242">For details, see <a href="evs_04_0038.html">Error Codes</a>.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="evs_04_4005.html">Disk Metadata Management</a></div>
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</div>
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</div>
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