--- title: Get Certificate --- [Skip to content](#_top) [API Reference](https://developers.cloudflare.com/api/go) [Origin CA Certificates](https://developers.cloudflare.com/api/go/resources/origin_ca_certificates) Copy Markdown Open in **Claude**Open in **ChatGPT**Open in **Cursor** --- **Copy Markdown****View as Markdown** # Get Certificate client.OriginCACertificates.Get(ctx, certificateID) (\*[OriginCACertificate](), error) GET/certificates/{certificate\_id} Get an existing Origin CA certificate by its serial number. You can use an Origin CA Key as your User Service Key or an API token when calling this endpoint ([see above](#requests)). ##### Security
API Token The preferred authorization scheme for interacting with the Cloudflare API. Create a token. **Example:**Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY
User Service Key Used when interacting with the Origin CA certificates API. View/change your key. **Example:**X-Auth-User-Service-Key: v1.0-144c9defac04969c7bfad8ef-631a41d003a32d25fe878081ef365c49503f7fada600da935e2851a1c7326084b85cbf6429c4b859de8475731dc92a9c329631e6d59e6c73da7b198497172b4cefe071d90d0f5d2719
##### ParametersExpand Collapse certificateID string The x509 serial number of the Origin CA certificate. [Link to this property](<#(resource)%20origin_ca_certificates%20%3E%20(method)%20get%20%3E%20(params)%20default%20%3E%20(param)%20certificate_id%20%3E%20(schema)>) ##### ReturnsExpand Collapse
type OriginCACertificate struct{…} Csr string The Certificate Signing Request (CSR). Must be newline-encoded. Link to this property Hostnames \[]string Array of hostnames or wildcard names bound to the certificate. Hostnames must be fully qualified domain names (FQDNs) belonging to zones on your account (e.g., example.com or sub.example.com). Wildcards are supported only as a *. prefix for a single level (e.g., *.example.com). Double wildcards (*.*.example.com) and interior wildcards (foo.*.example.com) are not allowed. The wildcard suffix must be a multi-label domain (*.example.com is valid, but *.com is not). Unicode/IDN hostnames are accepted and automatically converted to punycode. Link to this property
RequestType CertificateRequestType Signature type desired on certificate (“origin-rsa” (rsa), “origin-ecc” (ecdsa), or “keyless-certificate” (for Keyless SSL servers). One of the following: const CertificateRequestTypeOriginRSA CertificateRequestType = "origin-rsa" Link to this property const CertificateRequestTypeOriginECC CertificateRequestType = "origin-ecc" Link to this property const CertificateRequestTypeKeylessCertificate CertificateRequestType = "keyless-certificate" Link to this property
Link to this property
RequestedValidity RequestValidity The number of days for which the certificate should be valid. One of the following: const RequestValidity7 RequestValidity = 7 Link to this property const RequestValidity30 RequestValidity = 30 Link to this property const RequestValidity90 RequestValidity = 90 Link to this property const RequestValidity365 RequestValidity = 365 Link to this property const RequestValidity730 RequestValidity = 730 Link to this property const RequestValidity1095 RequestValidity = 1095 Link to this property const RequestValidity5475 RequestValidity = 5475 Link to this property
Link to this property ID stringOptional The x509 serial number of the Origin CA certificate. Link to this property Certificate stringOptional The Origin CA certificate. Will be newline-encoded. Link to this property ExpiresOn stringOptional When the certificate will expire. Link to this property
[Link to this property](<#(resource)%20origin_ca_certificates%20%3E%20(model)%20origin_ca_certificate%20%3E%20(schema)>) ### Get Certificate Go HTTPTypeScriptPythonGoTerraform ``` package main import ( "context" "fmt" "github.com/cloudflare/cloudflare-go" "github.com/cloudflare/cloudflare-go/option" ) func main() { client := cloudflare.NewClient( option.WithAPIToken("Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY"), ) originCACertificate, err := client.OriginCACertificates.Get(context.TODO(), "328578533902268680212849205732770752308931942346") if err != nil { panic(err.Error()) } fmt.Printf("%+v\n", originCACertificate.RequestedValidity) } ``` 200 example ``` { "errors": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "messages": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "success": true, "result": { "csr": "-----BEGIN CERTIFICATE REQUEST-----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\ndcWYTthM51JIqRBfNqy4QcBnX+GY05yltEEswQI55wdiS3CjTTA67sdbcQ==\n-----END CERTIFICATE REQUEST-----", "hostnames": [ "example.com", "*.example.com", "sub.example.com" ], "request_type": "origin-rsa", "requested_validity": 5475, "id": "328578533902268680212849205732770752308931942346", "certificate": "-----BEGIN CERTIFICATE-----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\n97Ob1alpHPoZ7mWiEuJwjBPii6a9M9G30nUo39lBi1w=\n-----END CERTIFICATE-----", "expires_on": "2014-01-01 05:20:00 +0000 UTC" } } ``` ##### Returns Examples 200 example ``` { "errors": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "messages": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "success": true, "result": { "csr": "-----BEGIN CERTIFICATE REQUEST-----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\ndcWYTthM51JIqRBfNqy4QcBnX+GY05yltEEswQI55wdiS3CjTTA67sdbcQ==\n-----END CERTIFICATE REQUEST-----", "hostnames": [ "example.com", "*.example.com", "sub.example.com" ], "request_type": "origin-rsa", "requested_validity": 5475, "id": "328578533902268680212849205732770752308931942346", "certificate": "-----BEGIN CERTIFICATE-----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\n97Ob1alpHPoZ7mWiEuJwjBPii6a9M9G30nUo39lBi1w=\n-----END CERTIFICATE-----", "expires_on": "2014-01-01 05:20:00 +0000 UTC" } } ```