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fhir_resource_conditional_patch.go
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fhir_resource_conditional_patch.go
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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package conditionalpatch shows how to conditionallly patch.
// It's in a separate package so each sample can define queryParamOpt.
package conditionalpatch
// [START healthcare_conditional_patch_resource]
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"time"
healthcare "google.golang.org/api/healthcare/v1beta1"
)
// queryParamOpt is a googleapi.Option (https://godoc.org/google.golang.org/api/googleapi#CallOption)
// that adds query parameters to an API call.
type queryParamOpt struct {
key, value string
}
func (qp queryParamOpt) Get() (string, string) { return qp.key, qp.value }
// ConditionalPatchFHIRResource conditionally patches an FHIR resource.
func ConditionalPatchFHIRResource(w io.Writer, projectID, location, datasetID, fhirStoreID, resourceType string, active bool) error {
// projectID := "my-project"
// location := "us-central1"
// datasetID := "my-dataset"
// fhirStoreID := "my-fhir-store"
// resourceType := "Patient"
// active := true
ctx := context.Background()
healthcareService, err := healthcare.NewService(ctx)
if err != nil {
return fmt.Errorf("healthcare.NewService: %w", err)
}
fhirService := healthcareService.Projects.Locations.Datasets.FhirStores.Fhir
parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/fhirStores/%s", projectID, location, datasetID, fhirStoreID)
payload := []map[string]interface{}{
{
"op": "replace",
"path": "/active",
"value": active,
},
}
jsonPayload, err := json.Marshal(payload)
if err != nil {
return fmt.Errorf("json.Encode: %w", err)
}
call := fhirService.ConditionalPatch(parent, resourceType, bytes.NewReader(jsonPayload))
call.Header().Set("Content-Type", "application/json-patch+json")
// Refine your search by appending tags to the request in the form of query
// parameters. This searches for resources updated in the last 48 hours.
twoDaysAgo := time.Now().Add(-48 * time.Hour).Format("2006-01-02")
lastUpdated := queryParamOpt{key: "_lastUpdated", value: "gt" + twoDaysAgo}
resp, err := call.Do(lastUpdated)
if err != nil {
return fmt.Errorf("ConditionalPatch: %w", err)
}
defer resp.Body.Close()
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("could not read response: %w", err)
}
if resp.StatusCode > 299 {
return fmt.Errorf("ConditionalPatch: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
}
fmt.Fprintf(w, "%s", respBytes)
return nil
}
// [END healthcare_conditional_patch_resource]