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format.go
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format.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.
// [START functions_slack_format]
package slack
import (
"fmt"
"google.golang.org/api/kgsearch/v1"
)
func formatSlackMessage(query string, response *kgsearch.SearchResponse) (*Message, error) {
if response == nil {
return nil, fmt.Errorf("empty response")
}
if response.ItemListElement == nil || len(response.ItemListElement) == 0 {
message := &Message{
ResponseType: "in_channel",
Text: fmt.Sprintf("Query: %s", query),
Attachments: []attachment{
{
Color: "#d6334b",
Text: "No results match your query.",
},
},
}
return message, nil
}
entity, ok := response.ItemListElement[0].(map[string]interface{})
if !ok {
return nil, fmt.Errorf("could not parse response entity")
}
result, ok := entity["result"].(map[string]interface{})
if !ok {
return nil, fmt.Errorf("error formatting response result")
}
attach := attachment{Color: "#3367d6"}
if name, ok := result["name"].(string); ok {
if description, ok := result["description"].(string); ok {
attach.Title = fmt.Sprintf("%s: %s", name, description)
} else {
attach.Title = name
}
}
if detailedDesc, ok := result["detailedDescription"].(map[string]interface{}); ok {
if url, ok := detailedDesc["url"].(string); ok {
attach.TitleLink = url
}
if article, ok := detailedDesc["articleBody"].(string); ok {
attach.Text = article
}
}
if image, ok := result["image"].(map[string]interface{}); ok {
if imageURL, ok := image["contentUrl"].(string); ok {
attach.ImageURL = imageURL
}
}
message := &Message{
ResponseType: "in_channel",
Text: fmt.Sprintf("Query: %s", query),
Attachments: []attachment{attach},
}
return message, nil
}
// [END functions_slack_format]